"Nothing in [sections of] this Act authorises regulations which ... create or facilitate border arrangements between Northern Ireland and the Republic of Ireland after exit day which feature physical infrastructure, including border posts, or checks and controls, that did not exist before exit day and are not in accordance with an agreement between the United Kingdom and the EU."

It is hard to see how the government can adhere to the principle of this amendment without either:

a) Retaining current EU customs arrangements and trade regulations across the UK, or:

b) Installing a hard border in the Irish sea.

At the very least, the amendment places a requirement on the UK government to negotiate a deal with the EU which closely mirrors current arrangements, if not replicating them in their entirety.

And as May and her government have repeatedly ruled out doing anything which would threaten the integrity of the UK, then it is hard to see how this won't point towards Britain accepting anything but the softest of soft Brexits.

As Ken Clarke told MPs during today's debate on the bill in the Commons:

"Effectively we are going to reproduce the customs union and the single market and the government will not be able to comply with yesterday's legal obligation unless it does so."

This interpretation was also endorsed by Labour's Shadow Brexit secretary Keir Starmer.